528937489 has 4 divisors (see below), whose sum is σ = 529366324. Its totient is φ = 528508656.

The previous prime is 528937481. The next prime is 528937501. The reversal of 528937489 is 984739825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 383493889 + 145443600 = 19583^2 + 12060^2 .

It is a cyclic number.

It is not a de Polignac number, because 528937489 - 2³ = 528937481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (528937481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212562 + ... + 215035.

It is an arithmetic number, because the mean of its divisors is an integer number (132341581).

Almost surely, 2^528937489 is an apocalyptic number.

It is an amenable number.

528937489 is a deficient number, since it is larger than the sum of its proper divisors (428835).

528937489 is a wasteful number, since it uses less digits than its factorization.

528937489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428834.

The product of its digits is 4354560, while the sum is 55.

The square root of 528937489 is about 22998.6410250693. The cubic root of 528937489 is about 808.7260821528.

It can be divided in two parts, 5289 and 37489, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 528937489 in words is "five hundred twenty-eight million, nine hundred thirty-seven thousand, four hundred eighty-nine".